Roll handling tool



July 11, 139% w, R, DUDA 2,165,921

ROLL HANDLING TOOL Filed July 26, 1938 Patented July 11, 1939 UNITED STATES PATENT OFFICE ROLL HANDLING TOOL Wentzel R. Duda, Pittsburgh, Pa., assignor to Continental Roll and Steel Foundry Company, a corporation of Delaware Application July 26, 1938, Serial No. 221,335

2 Claims. (01. 294-437) My invention relates to tools for use in han- In using the apparatus, the crane is shifted to dling rolls and the like, and is hereinafter demove the socket l4 over the Wobbler I5, in a discribed as more particularly employed in placrection lengthwise of the roll. The lifting tool is ing and removing mill rolls. so designed that ordinarily the center of gravity 5 With those types of devices employed in movof the roll 6 will be in direct vertical alignment 5 ing the rolls in an endwise direction into and With the lifting hook H, so that the roll will be out of their housings, provision has heretofore supported in approximately a horizontal posibeen made in each lifting tool for handling rolls tion, and can therefore readily be moved into of only one size, which necessitates the provision and from the roll housings. While the internal 10 of a separate lifting tool for each size of roll. diameter of the socket I4 is such that it can 10 Such an arrangement is objectionable not only readily be moved into position surrounding a because of the requirement for an extra lifting Wobbler, there is such small clearance between tool, but when changing rolls in roll stands havthe socket and the Wobbler that the roll will not ing rolls of difierent sizes, as in the case of threetilt to any great degree when it is being sushigh and four-high mills, for example, the presp de by the lifting 11 15 ence of two lifting tools instead of a single tool In order to handle rolls of a smaller size which makes for confusion and interference with the have correspondingly smaller Wobbler portions, a handling of the rolls. second socket I6 is positioned within the socket My invention has for one of its objects the I4 for slidable but non-rotatable movement thereprovision of a single lifting tool having two or in. A screw stud or shaft I1 is rigidly secured 20 more devices thereon for engagement with rolls to the socket I6 and extends rearwardly thereof, of different sizes, and wherein neither device will the shaft having a threaded portion that extends interfere with the use of the other device. through the rear wall of the socket M. The shaft Another object of my invention is to provide H has screw threaded engagement with a busha lifting tool having a roll-engaging socket which ing l8 that is rotatably supported within the rear 25 is adjustable to permit the center of gravity of wall of the socket l4 and has keyed thereto at the roll to be positioned in vertical alignment its rear end a hand wheel Hi. It will be seen with the point at which the lifting force is apthat when the hand wheel l9 and consequently plied to the tool. the bushing l8 are rotated, the socket [6 will be As shown in the accompanying drawing, Figure moved axially of the socket 14. A lubricant con- 80 1 is a view showing the manner in which the liftduit 20 is provided to permit lubrication of the ing tool is employed in placing and removing rolls screw. from their housings; Fig. 2 is a sectional view With the socket IS in its rearmost position, as on an enlarged scale of a portion of the lifting shown in Fig. 2, it is sufliciently far from the tool of Fig. 1; and Fig. 3 is an inner end View mouth of the socket M as not to interfere with 35 of the structure of Fig. 2. the use of the socket M in. handling the large The lifting tool is shown as employed in conrolls. When the smaller rolls are to be handled, nection With e placement and removal of rolls the hand wheel I9 is turned to advance the socket With respect t0 their sings 4. The view lllus- IE to the inner end of the socket I4, whereupon 4o trates a three-high mill wherein a small roll 5 the socket Hi can be moved into engagement with is disposed between larger rolls 6 and I. the Wobbler of the smaller roll, and such smaller The lifting tool is in the form of a casting or roll then handled in the same manner as the the like, having a horizontal leg portion 8 and a larger rolls are handled.

vertical leg portion 9. A pin l0 extends through Another advantage in providing an adjustable the upper leg portion for engagement by a hook socket such as the socket l6, resides in the fact 45 ll of a crane, not shown. A counter-balance I2 that it can be adjusted for use with rolls of difis slid upon the leg 8 and held in position thereon ferent lengths, the adjustment being so made by a pin or bolt l3 that extends through the that the center of gravity of a roll suspended members 8 and I2. The member 8 serves as a therefrom will be in vertical alignment with the counter-balance to maintain the lifting tool with lifting hook ll. 50

its leg 9 in approximately a vertical position, Iclaim asmy invention: when the lifting tool is free of a roll. At its 1. A tool for handling rolls, comprising a norlower end the leg 9 is provided with a socket-like ny-upright lifting member which is provided eXtenSlOn a diameter and OHr t0 fit at its lower end with a laterally-extending socket the Wobbler portion l5 0f the larger r011- formed to fit over a roll extension and being of greater length than is required for handling a roll, and a socket member for engaging a roll extension of smaller diameter and fitting within the first-named socket, the second-named socket member being adjustable axially, so that when its outer end is approximately flush with the outer end of the larger socket, it can be employed in the handling of small rolls, and when retracted toward the inner end of the first-named socket, it will not interfere with the handling of rolls by the larger socket.

2. A tool for handling rolls, comprising a horizontal leg, a vertical leg, a horizontally-extending socket member carried by the vertical leg and positioned to receive the end of the roll and support the roll in approximately a horizontal position beneath the first-named leg, when lifting force is exerted upon the horizontal leg, and a second socket member carried by said vertical leg, for engaging a roll of smaller diameter, the second-named socket member fitting within the first-named socket and being adjustable axially, so that when its outer end is approximately flush with the outer end of the larger socket, it can be employed in the handling of small rolls, and when retracted toward the inner end of the first-named socket, it will not interfere with the handling of rolls by the larger socket.

WENTZEL R. DUDA. 

